9 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
About 9 Rhyd Yr Helyg
9 Rhyd Yr Helyg is a three-bedroom semi-detached house in Nantgarw, Cardiff, Cardiff (CF15 7SW). It has a recorded floor area of 99 m² (around 1060 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (July 2010) shows a D (score 61), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 73). The latest certificate is from July 2010, so improvements made since then won't be reflected. Other recorded features include a conservatory.
Held since December 2010 — that's 15 years off the open market, well above the local norm. Today's modelled estimate of £230,000 sits 177.1% above the 2010 sale of £83,000. On a £-per-square-foot basis, the last sale (£78/sq ft) was about 39.5% below the postcode norm. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an annexe, meaningful when judging how the property has evolved. At 99 m² it's 21.6% larger than the typical home in the postcode (81 m² median across 3 EPCs).
What this property has
Inside
- Bedrooms3
- Dining roomYes
- CloakroomYes
- ConservatoryYes
Outside
- GarageSingle, Detached
Building
- Heating systemGas
Energy performance
9 Rhyd Yr Helyg's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 Jul 2020
EPC Rating
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Planning history
2 applications on record at 9 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
- May 2015AnnexFullOutcome in report
Erection of a pre-fabricated timber granny annexe for an ancillary residential use.
- Documents
- 13 docs on file
- Reference
- 15/0207/10
- More recent applications — locked
- AnnexMay 2015Decision
Unlock 9 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW's full planning history
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- Every decision — granted, refused or withdrawn (2 on record)
- All 2 applications on this property in full, plus 1 notable nearby
- The 26 documents, officer reports & conditions
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Sales history & valuation
9 Rhyd Yr Helyg valuation sits well clear of the typical sold price in this postcode.
£230,000
Modelled from EPC, postcode comparables.
£83,000
Recorded with HM Land Registry.
Sales timeline
22 December 2010Most recent
£83,000
Median price across the last 5 sales in CF15 7SW: £110,000 (2025–2013).
Nearby sales in CF15 7SW
6 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Sept 2025
£225,0002 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Aug 2021
£160,0004 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Apr 2017
£90,00010 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Jul 2010
£100,5001 Rhyd Yr Helyg, Nantgarw, Cardiff, CF15 7SW
Sold Jun 2000
£58,000
Versus other Rhyd Yr Helyg homes
Price per m² for 9 Rhyd Yr Helyg lags the street by a wide margin.
Price per m²
£842
Street avg £1,970
Floor Area
99 m²
Street avg 81 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 3.0 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Oxford Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







